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Rackin
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re: Throw hydrogen across the fence, please
Rackin   9/22/2008 6:59:23 PM
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I've been arguing this issue for YEARS. Folks, H2 isn't a fuel, it's an energy delivery tool! This will ALWAYS be true unless somebody discovers some hundred millions of metric tons of elemental hydrogen hiding in plain sight (or at least easy retrieval). Anybody here ever study thermodynamics? Or learned how to analyze SYSTEMS? Even wind, tidal, and solar energy isn't "free." Talk about how "environmentally friendly" these are? WHAT about the effect on WEATHER patterns; you move the place where all of that energy is eventually converted to heat quite far from where it would be if left alone.

Hube
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re: Throw hydrogen across the fence, please
Hube   9/19/2008 3:48:51 PM
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Same feeling regarding throwing problem over the fence. People just look around their feet and do'nt try to rise their thinking towards a global look.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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